314
FNCA52 TJSJ 080730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST THU OCT 8 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-082000-
SOUTHEAST COASTAL PLAINS-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 30
TEMP (24H TREND) 90 (+2) 74 (-2) 91
RH % (24H TREND) 55 (-4) 90 (0) 43
WIND 20FT/EARLY(MPH) E 13 E 12 E 16
WIND 20FT/LATE(MPH) SE 14 NE 11 E 16
MIXING HGT(FT-AGL/MSL)4490 4980
TRANSPORT WND (MPH) E 15 E 16
VENT RATE (KT-FT) 58370 69720
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-082000-
SOUTHERN HILLS-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 40
TEMP (24H TREND) 88 (+4) 71 (-3) 89
RH % (24H TREND) 64 (-7) 97 (+3) 58
WIND 20FT/EARLY(MPH) E 11 E 11 E 12
WIND 20FT/LATE(MPH) SE 11 E 11 E 12
MIXING HGT(FT-AGL/MSL)4900 5650
TRANSPORT WND (MPH) E 15 E 15
VENT RATE (KT-FT) 63700 73450
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-082000-
NORTH COASTAL PLAINS-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 10
TEMP (24H TREND) 91 (+1) 74 (-2) 91
RH % (24H TREND) 63 (-3) 96 (+3) 60
WIND 20FT/EARLY(MPH) E 12 E 11 E 13
WIND 20FT/LATE(MPH) E 14 SE 10 E 19
MIXING HGT(FT-AGL/MSL)5260 5120
TRANSPORT WND (MPH) SE 13 E 17
VENT RATE (KT-FT) 57860 76800
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-082000-
NORTHERN HILLS-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 80 30 30
TEMP (24H TREND) 91 (+4) 71 (-3) 90
RH % (24H TREND) 64 (-4) 96 (+2) 60
WIND 20FT/EARLY(MPH) E 10 E 10 E 11
WIND 20FT/LATE(MPH) E 13 E 8 E 17
MIXING HGT(FT-AGL/MSL)5310 6140
TRANSPORT WND (MPH) SE 10 E 14
VENT RATE (KT-FT) 47790 73680
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-082000-
WEST COAST-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 30 60
TEMP (24H TREND) 92 (+2) 74 (-1) 93
RH % (24H TREND) 64 (-3) 96 (+5) 59
WIND 20FT/EARLY(MPH) E 13 E 12 E 12
WIND 20FT/LATE(MPH) E 14 E 10 E 13
MIXING HGT(FT-AGL/MSL)4290 4720
TRANSPORT WND (MPH) SE 13 E 10
VENT RATE (KT-FT) 47190 42480
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-082000-
EASTERN INTERIOR-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 30
TEMP (24H TREND) 90 (+4) 72 (-3) 90
RH % (24H TREND) 63 (-5) 97 (+2) 59
WIND 20FT/EARLY(MPH) SE 12 E 12 E 12
WIND 20FT/LATE(MPH) SE 13 E 12 E 12
MIXING HGT(FT-AGL/MSL)5320 5850
TRANSPORT WND (MPH) SE 16 E 16
VENT RATE (KT-FT) 74480 81900
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-082000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 30
TEMP (24H TREND) 85 (+3) 71 (-2) 86
RH % (24H TREND) 67 (-4) 99 (+1) 63
WIND 20FT/EARLY(MPH) SE 11 E 10 E 11
WIND 20FT/LATE(MPH) SE 11 E 9 E 11
MIXING HGT(FT-AGL/MSL)4000 4320
TRANSPORT WND (MPH) SE 17 E 16
VENT RATE (KT-FT) 60000 60480
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-082000-
CENTRAL MOUNTAIN RANGE-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 20 50
TEMP (24H TREND) 88 (+7) 69 (-3) 88
RH % (24H TREND) 67 (-8) 97 (+3) 60
WIND 20FT/EARLY(MPH) SE 9 E 8 E 9
WIND 20FT/LATE(MPH) SE 9 E 6 E 11
MIXING HGT(FT-AGL/MSL)5430 6950
TRANSPORT WND (MPH) SE 10 E 12
VENT RATE (KT-FT) 48870 69500
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-082000-
CAYEY MOUNTAIN RANGE-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 20
TEMP (24H TREND) 85 (+3) 70 (-3) 86
RH % (24H TREND) 68 (-5) 99 (+1) 63
WIND 20FT/EARLY(MPH) SE 10 E 9 E 10
WIND 20FT/LATE(MPH) E 10 E 9 E 10
MIXING HGT(FT-AGL/MSL)4470 4970
TRANSPORT WND (MPH) E 16 E 16
VENT RATE (KT-FT) 62580 69580
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-082000-
VIEQUES-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 30
TEMP (24H TREND) 90 (+1) 78 (-1) 90
RH % (24H TREND) 60 (-2) 86 (-4) 58
WIND 20FT/EARLY(MPH) E 14 E 16 E 16
WIND 20FT/LATE(MPH) E 14 E 16 E 13
MIXING HGT(FT-AGL/MSL)3340 3470
TRANSPORT WND (MPH) E 17 E 20
VENT RATE (KT-FT) 50100 58990
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-082000-
CULEBRA-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 30
TEMP (24H TREND) 91 (+2) 79 (-2) 91
RH % (24H TREND) 60 (-4) 85 (-1) 58
WIND 20FT/EARLY(MPH) SE 14 E 16 E 16
WIND 20FT/LATE(MPH) E 14 E 16 E 12
MIXING HGT(FT-AGL/MSL)3650 3450
TRANSPORT WND (MPH) E 20 E 20
VENT RATE (KT-FT) 62050 58650
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-082000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 10 30
TEMP (24H TREND) 92 (+2) 75 (-2) 93
RH % (24H TREND) 54 (-3) 90 (+1) 44
WIND 20FT/EARLY(MPH) E 17 E 18 E 17
WIND 20FT/LATE(MPH) SE 19 E 16 E 19
MIXING HGT(FT-AGL/MSL)4440 4860
TRANSPORT WND (MPH) E 18 E 17
VENT RATE (KT-FT) 71040 72900
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-082000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 30
TEMP (24H TREND) 88 (+1) 78 (-2) 88
RH % (24H TREND) 64 (-4) 87 (+1) 64
WIND 20FT/EARLY(MPH) E 14 E 14 E 16
WIND 20FT/LATE(MPH) E 14 E 16 E 13
MIXING HGT(FT-AGL/MSL)3520 3540
TRANSPORT WND (MPH) E 20 E 17
VENT RATE (KT-FT) 59840 53100
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-082000-
ST CROIX-
330 AM AST THU OCT 8 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 10 30
TEMP (24H TREND) 89 (+1) 78 (-1) 90
RH % (24H TREND) 65 (-3) 89 (-1) 63
WIND 20FT/EARLY(MPH) E 14 E 14 E 14
WIND 20FT/LATE(MPH) E 14 E 14 E 13
MIXING HGT(FT-AGL/MSL)4360 4340
TRANSPORT WND (MPH) E 20 E 17
VENT RATE (KT-FT) 74120 65100
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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